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Choose the most suitable 'improvised units'(中間人)
Author:
Shum Kwok Ching
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
兩位數加法
兩位數除以一位數（二）
球体的体积推导
Discover Resources
Where is Micky?
模版 - 無框黑板
Copy of 長方形與正方形的面積
圓冪性質
時距計算機 (時針改變)
Discover Topics
Line Segment
Statistical Characteristics
Histogram
Trigonometry
Continuity